Cross-Site-Request-Forgery in Backend
Meta
- CVSS:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C(8.2)
Problem
It has been discovered that the new TYPO3 v11 feature that allows users to create and share deep links in the backend user interface is vulnerable to cross-site-request-forgery.
The impact is the same as described in TYPO3-CORE-SA-2020-006 (CVE-2020-11069). However, it is not limited to the same site context and does not require the attacker to be authenticated. In a worst case scenario, the attacker could create a new admin user account to compromise the system.
To successfully carry out an attack, an attacker must trick his victim to access a compromised system. The victim must have an active session in the TYPO3 backend at that time.
The following Same-Site cookie settings in $GLOBALS[TYPO3_CONF_VARS][BE][cookieSameSite] are required for an attack to be successful:
- SameSite=strict: malicious evil.example.org invoking TYPO3 application at good.example.org
- SameSite=lax or none: malicious evil.com invoking TYPO3 application at example.org
Solution
Update your instance to TYPO3 version 11.5.0 which addresses the problem described.
Credits
Thanks to Richie Lee who reported this issue and to TYPO3 core & security team members Benni Mack and Oliver Hader who fixed the issue.
References
- TYPO3-CORE-SA-2021-014
- CVE-2020-11069 reintroduced in TYPO3 v11.2.0
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de Composer | typo3/cms | >= 11.2.0, < 11.5.0 | 11.5.0 |
| Paquete de Composer | typo3/cms-core | >= 11.2.0, < 11.5.0 | 11.5.0 |
Referencias
- https://github.com/TYPO3/typo3/security/advisories/GHSA-657m-v5vm-f6rw
- https://nvd.nist.gov/vuln/detail/CVE-2020-11069
- https://nvd.nist.gov/vuln/detail/CVE-2021-41113
- https://github.com/TYPO3/typo3/commit/fa51999203c5e5d913ecae5ea843ccb2b95fa33f
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-41113.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-41113.yaml
- https://github.com/TYPO3/typo3
- https://typo3.org/security/advisory/typo3-core-sa-2020-006
- https://typo3.org/security/advisory/typo3-core-sa-2021-014
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- Debilidad (CWE)
CWE-309, CWE-352- Plataforma
- Composer
- Paquete
typo3/cms, typo3/cms-core- Publicada
- 05.10.2021
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-657m-v5vm-f6rw - CC BY 4.0
Historial de vulnerabilidades: typo3/cms-core
Todas las vulnerabilidades publicadas de este paquete (Paquete de Composer), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 128
- Primera → última
- 09.2018 09.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 1
- Alta 35
- Media 84
- Baja 8
Divulgaciones por año
- 2018: 2
- 2019: 0
- 2020: 13
- 2021: 15
- 2022: 34
- 2023: 3
- 2024: 38
- 2025: 8
- 2026: 15
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Cross-Site-Request-Forgery in Backend esta entrada
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